ENTRY O1303 20060109 O026O130300000001 SUBENT O1303001 20060109 O026O130300100001 BIB 11 49 O130300100002 TITLE Very heavy fission fragments produced in the spallationO130300100003 reaction 238U + P at 1 A GeV. O130300100004 REFERENCE (J,NP/A,765,197,2006) O130300100005 REL-REF (N,O1069001,M.BERNAS+,J,NP/A,725,213,2003) Fission O130300100006 fragments production. O130300100007 (N,O1053001,J.TAIEB+,J,NP/A,724,413,2003) Evaporation O130300100008 residues production. O130300100009 AUTHOR (M.Bernas, P.Armbruster, J.Benlliure, A.Boudard, O130300100010 E.Casarejos, T.Enqvist, A.Kelic, R.Legrain, S.Leray, O130300100011 J.Pereira, F.Rejmundb, M.-V.Ricciardi, K.-H.Schmidt, O130300100012 C.Stephan, J.Taieb, L.Tassan-Got, C.Volant) O130300100013 INSTITUTE (2FR PAR) Institut de Physique Nucleaire. O130300100014 (2GERGSI) O130300100015 (2SPNSAU) O130300100016 (2FR SAC) DAPNIA/SPhN, CEA/Saclay. O130300100017 (2FR GRA) O130300100018 COMMENT -By authors. The main results from both reaction O130300100019 channels already published are briefly recalled: O130300100020 the total fission cross section for all elements O130300100021 between nitrogen and rhenium, (1.53+/-0.15) B, is more O130300100022 than 3 times larger than the evaporation residues crossO130300100023 section, (0.44+/-0.06) B. Evaporation residues - O130300100024 production is the main source of fragments close to U.O130300100025 After a rapid fall, within the 10 mass units close to UO130300100026 covering 0.24 B (the main part of the evaporation O130300100027 residues cross section) the mass distribution decreasesO130300100028 smoothly from 5 mb to 4 mb within a range of mass O130300100029 losses of 45 mass units. Finally a break-down by a O130300100030 factor of 5 to the level of 0.8 mb is observed at a O130300100031 mass loss of 70, where the evaporation residues-cross O130300100032 sections equal the fission fragments cross sections. O130300100033 SAMPLE A thin liquid hidrogen target (87 mg/cm2) O130300100034 DETECTOR (SPEC) Forward emitted fragments, bare from atomic O130300100035 electrons, are analysed in momentum with the high- O130300100036 resolution fragment separator and fully identified in O130300100037 the associated detectors; time-of-flight and energy O130300100038 loss of ions were measured. O130300100039 The velocity of each fragment is precisely determined O130300100040 and converted into the rest frame of the projectile. O130300100041 The velocity distribution for a given nuclide reveals O130300100042 the process from where it comes: either from fission O130300100043 of a more or less excited spallation residue leading toO130300100044 two fission fragments , or from evaporation of nucleonsO130300100045 leading to evaporation residues. O130300100046 FACILITY (SYNCH,2GERGSI) O130300100047 (FRS,2GERGSI) O130300100048 METHOD (TOF,EDE) O130300100049 HISTORY (20051226C) by F.C O130300100050 (20060109U) Last checking has been done. O130300100051 ENDBIB 49 0 O130300100052 COMMON 1 3 O130300100053 EN O130300100054 MEV O130300100055 238000. O130300100056 ENDCOMMON 3 0 O130300100057 ENDSUBENT 56 0 O130300199999 SUBENT O1303002 20060109 O026O130300200001 BIB 4 10 O130300200002 REACTION (1-H-1(92-U-238,F)ELEM/MASS,IND,SIG) O130300200003 Inverse kinematics. O130300200004 ERR-ANALYS (ERR-S) Statistical uncertainties are given , excludingO130300200005 the systematical uncertainties. O130300200006 (ERR-1) The systematical uncertainty. O130300200007 ANALYSIS (INTED) The production cross sections are obtained by O130300200008 integrating the velocity distributions taking into O130300200009 account the transmission in the FRS. O130300200010 FLAG (1.) The uncertainty for the product is not given in O130300200011 data table. O130300200012 ENDBIB 10 0 O130300200013 COMMON 1 3 O130300200014 ERR-1 O130300200015 PER-CENT O130300200016 10. O130300200017 ENDCOMMON 3 0 O130300200018 DATA 5 182 O130300200019 ELEMENT MASS DATA ERR-S FLAG O130300200020 NO-DIM NO-DIM MB MB NO-DIM O130300200021 64. 147. 0.26 0.04 O130300200022 64. 148. 0.34 0.04 O130300200023 64. 149. 0.429 0.034 O130300200024 64. 150. 0.454 0.045 O130300200025 64. 151. 0.47 0.12 O130300200026 64. 152. 0.476 0.024 O130300200027 64. 153. 0.45 0.05 O130300200028 64. 154. 0.34 0.05 O130300200029 64. 155. 0.29 0.03 O130300200030 64. 156. 0.24 0.03 O130300200031 64. 157. 0.17 0.02 O130300200032 64. 158. 0.12 0.02 O130300200033 64. 159. 0.077 0.014 O130300200034 64. 160. 0.052 0.007 O130300200035 64. 161. 0.028 0.005 O130300200036 64. 162. 0.012 0.007 O130300200037 65. 147. 0.07 0.04 O130300200038 65. 148. 0.12 0.05 O130300200039 65. 149. 0.221 0.077 O130300200040 65. 150. 0.331 0.099 O130300200041 65. 151. 0.374 0.075 O130300200042 65. 152. 0.421 0.042 O130300200043 65. 153. 0.424 0.042 O130300200044 65. 154. 0.38 0.04 O130300200045 65. 155. 0.35 0.05 O130300200046 65. 156. 0.306 0.046 O130300200047 65. 157. 0.244 0.036 O130300200048 65. 158. 0.187 0.028 O130300200049 65. 159. 0.143 0.021 O130300200050 65. 160. 0.096 0.019 O130300200051 65. 161. 0.063 0.019 O130300200052 65. 162. 0.037 0.012 O130300200053 65. 163. 0.021 0.007 O130300200054 65. 164. 0.0095 0.0038 O130300200055 66. 151. 0.136 0.054 O130300200056 66. 152. 0.214 0.064 O130300200057 66. 153. 0.311 0.062 O130300200058 66. 154. 0.35 0.06 O130300200059 66. 155. 0.373 0.056 O130300200060 66. 156. 0.332 0.05 O130300200061 66. 157. 0.314 0.047 O130300200062 66. 158. 0.262 0.052 O130300200063 66. 159. 0.204 0.051 O130300200064 66. 160. 0.175 0.044 O130300200065 66. 161. 0.118 0.035 O130300200066 66. 162. 0.078 0.023 O130300200067 66. 163. 0.054 0.016 O130300200068 66. 164. 0.029 0.01 O130300200069 66. 165. 0.016 0.006 O130300200070 66. 166. 0.0085 1. O130300200071 67. 152. 0.069 0.03 O130300200072 67. 153. 0.119 0.036 O130300200073 67. 154. 0.2 0.03 O130300200074 67. 155. 0.27 0.03 O130300200075 67. 156. 0.306 0.031 O130300200076 67. 157. 0.319 0.032 O130300200077 67. 158. 0.284 0.043 O130300200078 67. 159. 0.266 0.04 O130300200079 67. 160. 0.23 0.05 O130300200080 67. 161. 0.177 0.039 O130300200081 67. 162. 0.154 0.034 O130300200082 67. 163. 0.106 0.026 O130300200083 67. 164. 0.069 0.017 O130300200084 67. 165. 0.044 0.012 O130300200085 67. 166. 0.027 0.008 O130300200086 67. 167. 0.016 0.008 O130300200087 67. 168. 0.008 0.004 O130300200088 68. 155. 0.073 0.036 O130300200089 68. 156. 0.134 0.04 O130300200090 68. 157. 0.212 0.042 O130300200091 68. 158. 0.285 0.028 O130300200092 68. 159. 0.295 0.029 O130300200093 68. 160. 0.281 0.028 O130300200094 68. 161. 0.248 0.025 O130300200095 68. 162. 0.223 0.033 O130300200096 68. 163. 0.173 0.026 O130300200097 68. 164. 0.14 0.03 O130300200098 68. 165. 0.099 0.025 O130300200099 68. 166. 0.063 0.019 O130300200100 68. 167. 0.037 0.013 O130300200101 68. 168. 0.022 0.009 O130300200102 68. 169. 0.012 0.006 O130300200103 68. 170. 0.007 0.004 O130300200104 69. 157. 0.06 0.02 O130300200105 69. 158. 0.126 0.025 O130300200106 69. 159. 0.227 0.023 O130300200107 69. 160. 0.273 0.054 O130300200108 69. 161. 0.294 0.03 O130300200109 69. 162. 0.282 0.048 O130300200110 69. 163. 0.242 0.036 O130300200111 69. 164. 0.203 0.03 O130300200112 69. 165. 0.154 0.015 O130300200113 69. 166. 0.117 0.023 O130300200114 69. 167. 0.072 0.025 O130300200115 69. 168. 0.043 0.013 O130300200116 69. 169. 0.023 0.01 O130300200117 69. 170. 0.012 0.006 O130300200118 70. 160. 0.15 0.038 O130300200119 70. 161. 0.22 0.022 O130300200120 70. 162. 0.248 0.038 O130300200121 70. 163. 0.266 0.027 O130300200122 70. 164. 0.254 0.039 O130300200123 70. 165. 0.251 0.038 O130300200124 70. 166. 0.22 0.034 O130300200125 70. 167. 0.17 0.021 O130300200126 70. 168. 0.143 0.022 O130300200127 70. 169. 0.093 0.014 O130300200128 70. 170. 0.066 0.007 O130300200129 70. 171. 0.04 0.008 O130300200130 70. 172. 0.022 0.007 O130300200131 70. 173. 0.015 0.006 O130300200132 70. 174. 0.005 0.003 O130300200133 71. 162. 0.076 0.038 O130300200134 71. 163. 0.144 0.043 O130300200135 71. 164. 0.224 0.034 O130300200136 71. 165. 0.249 0.025 O130300200137 71. 166. 0.235 0.047 O130300200138 71. 167. 0.218 0.022 O130300200139 71. 168. 0.194 0.029 O130300200140 71. 169. 0.166 0.02 O130300200141 71. 170. 0.125 0.013 O130300200142 71. 171. 0.0941 0.094 O130300200143 71. 172. 0.0623 0.093 O130300200144 71. 173. 0.0355 0.071 O130300200145 71. 174. 0.018 0.005 O130300200146 71. 175. 0.009 0.005 O130300200147 71. 176. 0.005 0.003 O130300200148 72. 164. 0.075 0.023 O130300200149 72. 165. 0.148 0.03 O130300200150 72. 166. 0.202 0.03 O130300200151 72. 167. 0.235 0.023 O130300200152 72. 168. 0.259 0.026 O130300200153 72. 169. 0.231 0.035 O130300200154 72. 170. 0.2 0.03 O130300200155 72. 171. 0.174 0.026 O130300200156 72. 172. 0.14 0.028 O130300200157 72. 173. 0.095 0.019 O130300200158 72. 174. 0.061 0.012 O130300200159 72. 175. 0.04 0.01 O130300200160 72. 176. 0.022 0.008 O130300200161 72. 177. 0.013 0.007 O130300200162 72. 178. 0.006 0.004 O130300200163 73. 166. 0.019 0.012 O130300200164 73. 167. 0.048 0.014 O130300200165 73. 168. 0.094 0.027 O130300200166 73. 169. 0.158 0.039 O130300200167 73. 170. 0.212 0.052 O130300200168 73. 171. 0.257 0.077 O130300200169 73. 172. 0.228 0.066 O130300200170 73. 173. 0.194 0.05 O130300200171 73. 174. 0.162 0.049 O130300200172 73. 175. 0.098 0.03 O130300200173 73. 176. 0.064 0.024 O130300200174 73. 177. 0.034 0.017 O130300200175 73. 178. 0.018 0.009 O130300200176 73. 179. 0.01 0.006 O130300200177 73. 180. 0.006 0.004 O130300200178 74. 170. 0.052 0.018 O130300200179 74. 171. 0.097 0.029 O130300200180 74. 172. 0.138 0.027 O130300200181 74. 173. 0.172 0.026 O130300200182 74. 174. 0.195 0.029 O130300200183 74. 175. 0.181 0.036 O130300200184 74. 176. 0.143 0.031 O130300200185 74. 177. 0.109 0.034 O130300200186 74. 178. 0.072 0.023 O130300200187 74. 179. 0.044 0.018 O130300200188 74. 180. 0.024 0.012 O130300200189 74. 181. 0.011 0.008 O130300200190 74. 182. 0.006 0.005 O130300200191 75. 173. 0.03 0.02 O130300200192 75. 174. 0.07 0.03 O130300200193 75. 175. 0.11 0.04 O130300200194 75. 176. 0.15 0.03 O130300200195 75. 177. 0.18 0.04 O130300200196 75. 178. 0.18 0.04 O130300200197 75. 179. 0.15 0.06 O130300200198 75. 180. 0.11 0.05 O130300200199 75. 181. 0.067 0.04 O130300200200 75. 182. 0.044 0.031 O130300200201 75. 183. 0.025 0.017 O130300200202 75. 184. 0.013 0.009 O130300200203 ENDDATA 184 0 O130300200204 ENDSUBENT 203 0 O130300299999 SUBENT O1303003 20060109 O026O130300300001 BIB 2 2 O130300300002 REACTION (1-H-1(92-U-238,F)ELEM,,AKE,FF) O130300300003 ERR-ANALYS (DATA-ERR) An analysis is not given. O130300300004 ENDBIB 2 0 O130300300005 NOCOMMON 0 0 O130300300006 DATA 3 15 O130300300007 ELEMENT DATA DATA-ERR O130300300008 NO-DIM MEV MEV O130300300009 60. 49.1 3.1 O130300300010 61. 47.1 4.8 O130300300011 62. 44.5 3. O130300300012 63. 41.4 5. O130300300013 64. 39.7 5. O130300300014 65. 36.7 4. O130300300015 66. 33. 4. O130300300016 67. 30.3 3. O130300300017 68. 27.8 3. O130300300018 69. 24.9 3. O130300300019 70. 22.8 3. O130300300020 71. 21.5 2.3 O130300300021 72. 20.1 2.3 O130300300022 73. 18. 2.2 O130300300023 74. 16.7 2. O130300300024 ENDDATA 17 0 O130300300025 ENDSUBENT 24 0 O130300399999 ENDENTRY 3 0 O130399999999